FLORHAM PARK – Cornerback Darrin Walls, whose role in the Jets’ secondary has suddenly been spotlighted, did not practice Tuesday. But coach Rex Ryan is not concerned. He said Walls is nursing a minor leg injury that won’t jeopardize his status for the Sept. 7 season opener against Oakland.

“He’s fine,” Ryan said.

Walls won’t play in Thursday’s preseason finale at the Eagles, since Ryan wants to be as healthy as possible at cornerback entering the Raiders game. Cornerbacks Ellis Lankster and LeQuan Lewis will play, and seem likely to be the starters Thursday.

The Jets have sustained significant attrition to their cornerback spot. So they need Walls at 100 percent. On Monday, Ryan had already ruled him out of playing against the Eagles. Walls, at this point, has been elevated to a starting job. He started opposite converted safety Antonio Allen in Friday’s game against the Giants.

One Jets starting corner, Dee Milliner, is recovering from a high ankle sprain. Another, Dimitri Patterson, remains indefinitely suspended after going AWOL from the team. A likely top backup, rookie Dexter McDougle, is out for the year with a knee injury. Allen, who moved to corner after Milliner and McDougle got hurt, sustained a concussion Friday against the Giants.

Tuesday was the Jets’ final practice before their game in Philadelphia. They used Tuesday as an opportunity rest starters who aren’t going to play in the preseason finale anyway. Right guard Willie Colon, who underwent arthroscopic knee surgery in the offseason, had a rest day. So did running back Chris Johnson, also coming off knee surgery. Weak-side linebacker Demario Davis sat out while nursing a minor ankle injury.

As expected, four other Jets did not practice Tuesday: Milliner, linebacker Troy Davis (quad), rush linebacker Antwan Barnes (still on the physically unable to perform list after knee surgery) and rookie rush linebacker IK Enemkpali (who missed the Giants game with a foot injury that is not a bone break, said Ryan). Oh, and Allen was obviously out, as well.

Wide receiver Stephen Hill, whose days in a Jets uniform could be numbered, vomited on the field Tuesday, but remained in practice. He did not practice Sunday because of an illness. He tried to practice Monday, but was sent home after vomiting.

Ryan said tight end Jeff Cumberland continues to do maintenance stretching work during practice after returning from tightness in his Achilles tendon. But Ryan considers Cumberland to be back – a good sign for the Jets’ offense.